CN220065001U - Interesting experimental device convenient for demonstrating friction force effect - Google Patents

Abstract

The utility model discloses an interesting experiment device convenient for demonstrating friction force effect, which comprises an experiment plate, wherein a transmission belt is arranged at the outer end of the experiment plate, a bottom plate is arranged on the transmission belt at equal intervals, friction blocks are arranged above the bottom plate, a placing groove is uniformly formed in the friction blocks, springs are arranged on the inner walls of the placing groove, cushion blocks are connected with the tail ends of the springs, a fixing rod is arranged at the right end of the friction blocks, a hollow structure is arranged in the fixing rod, a spring dynamometer is arranged on the right side of the friction blocks, a hook is arranged at the left end of the spring dynamometer, the hook is connected with the fixing rod, a connecting rod is connected to the right side of the spring dynamometer, and the right end of the connecting rod is connected with an electric telescopic rod. This interesting experimental apparatus convenient to demonstration frictional force effect, the bottom plate of convenient change different materials carries out frictional force effect contrast, reduces manual operation for the friction block is uniform motion, the dynamometer reading of being convenient for.

Description

Interesting experimental device convenient for demonstrating friction force effect

Technical Field

The utility model relates to the technical field of friction force experimental devices, in particular to an interesting experimental device convenient for demonstrating friction force effect.

Background

Friction refers to the fact that two objects that are in contact with each other and are pressed against each other, when they are in relative motion or have a tendency to move relative to each other, forces are generated on the contact surface that counteract the relative motion or the tendency to move relative to each other. When a user demonstrates and teaches friction force, the user needs to use an experimental device to help students to quickly know the friction force, for example, the patent of the utility model with the publication number of CN211294407U discloses a friction force experimental device, so that the problems of uneven speed, inclination of the pulling force direction and inaccurate reading are solved, and the accuracy of the experiment is greatly improved.

In the demonstration process of the conventional friction experimental device, the friction bottom plate may need to be replaced by manual operation, so that the friction bottom plate is not convenient enough, and the conditions such as uneven speed may be caused by manual pulling force, so that an interesting experimental device convenient for demonstrating the friction force effect is provided, and the problem provided in the above is solved.

Disclosure of Invention

The utility model aims to provide an interesting experimental device convenient for demonstrating friction force effect, so as to solve the problems that in the demonstration process of most friction force experimental devices in the background technology, a friction bottom plate is possibly required to be replaced by manual operation, the friction bottom plate is inconvenient, and the speed is possibly uneven due to manual pulling force.

In order to achieve the above purpose, the present utility model provides the following technical solutions: interesting experimental apparatus convenient to demonstration frictional force effect, including the experimental plate:

the outer end of the experiment plate is provided with a driving belt, a bottom plate is arranged on the driving belt at equal intervals, a friction block is arranged above the bottom plate, a placing groove is uniformly formed in the friction block, a spring is installed on the inner wall of the placing groove, a cushion block is connected at the tail end of the spring, a fixed rod is installed at the right end of the friction block, a hollow structure is arranged in the fixed rod, a spring dynamometer is arranged on the right side of the friction block, a hook is arranged at the left end of the spring dynamometer and is connected with the fixed rod, a connecting rod is connected on the right side of the spring dynamometer, the right end of the connecting rod is connected with an electric telescopic rod, and the electric telescopic rod is installed on the right side of the experiment plate;

the motor is installed in the left side of experiment board, the motor is connected with the dwang, the dwang passes through the bolt and rotates and install on the moving part, the moving part is connected with the fixed block joint, the left end at the experiment board is installed to the fixed block, the fixed block rotates with the center of carousel and is connected, equidistant regulation pole of installing on the carousel, it is connected with the moving part joint to adjust the pole, the end of adjusting the pole is connected with the drive belt.

Preferably, one end of the moving part, which is in clamping connection with the adjusting rod, is in a U-shaped structure.

Preferably, the rotating rod, the moving member and the adjusting rod form a transmission structure.

Preferably, the longitudinal section of the connecting rod is of an L-shaped structure.

Preferably, the friction block and the experimental plate form a sliding structure.

Compared with the prior art, the utility model has the beneficial effects that: the interesting experimental device convenient for demonstrating the friction force effect is convenient for replacing the bottom plates made of different materials to compare the friction force effect, reduces manual operation, ensures that the friction block moves at a uniform speed, and is convenient for the reading of the dynamometer;

1. the rotary table is provided with a rotary rod, a moving part and a rotary table, the moving part is connected with the rotary table through a fixed block, the rotary table is connected with a transmission belt through an adjusting rod, the rotary table drives the moving part to move under the action of a motor, and the rotary table rotates along with the rotary table, so that the transmission belt moves, a bottom plate made of different materials is replaced, and the demonstration of friction force action contrast is facilitated;

2. be provided with friction block and standing groove, the standing groove has evenly been seted up to the inside of friction block, and the accessible increases the weight, adjusts the weight of friction block, is convenient for demonstrate frictional force size, utilizes the connecting rod to be connected with electric telescopic handle for the friction block is uniform motion, the dynamometer reading of being convenient for.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic diagram of the front cut-away structure of the present utility model;

FIG. 3 is a schematic diagram of a connection structure between a turntable and a moving part according to the present utility model;

fig. 4 is a schematic view of the structure of the base plate of the present utility model.

In the figure: 1. an experimental plate; 2. a transmission belt; 3. a bottom plate; 4. a friction block; 5. a placement groove; 6. a spring; 7. a fixed rod; 8. a spring dynamometer; 9. a hook; 10. a connecting rod; 11. an electric telescopic rod; 12. a motor; 13. a rotating lever; 14. a moving member; 15. a fixed block; 16. a turntable; 17. and (5) adjusting the rod.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a taste experimental apparatus convenient to demonstration frictional force effect, including experiment board 1, drive belt 2, bottom plate 3, friction disc 4, standing groove 5, spring 6, dead lever 7, spring dynamometer 8, couple 9, connecting rod 10, electric telescopic handle 11, motor 12, dwang 13, moving part 14, fixed block 15, carousel 16 and regulation pole 17, utilize taste experimental apparatus to demonstrate frictional force effect for students, can help the student to know frictional force fast, improve student's study enthusiasm, can adjust the weight of friction disc 4 and the roughness of bottom plate 3 according to actual need in the experimental process, thereby realize the experiment of frictional force under the different environment, and easy operation, be convenient for demonstrate;

as shown in fig. 1 and 2, the outer end of the experiment board 1 is provided with a driving belt 2, a friction block 4 is placed on a bottom plate 3 on the driving belt 2, the right end of the friction block 4 is connected with a spring dynamometer 8 through a fixed rod 7, the spring dynamometer 8 is connected with a connecting rod 10, the right end of the connecting rod 10 is connected with the output end of an electric telescopic rod 11, under the action of the electric telescopic rod 11, the connecting rod 10 moves rightwards, the spring dynamometer 8 moves along with the connecting rod, and drives a fixed rod 7 connected with a hook 9 of the spring dynamometer 8 to move, so that the friction block 4 moves on the bottom plate 3, and when the friction block 4 moves at a uniform speed, the friction force can be obtained through reading of the spring dynamometer 8;

as shown in fig. 1, a placing groove 5 is formed in the friction block 4, a spring 6 is installed on the inner wall of the placing groove 5, the tail end of the spring 6 is connected with a cushion block, a weight with a certain weight can be placed in the placing groove 5 according to actual needs, the weight of the friction block 4 is increased, the weight is limited by utilizing the action of the spring 6, the instability of the friction block 4 caused by collision with the inner wall of the placing groove 5 is avoided, then an electric telescopic rod 11 can be started, the weighted friction block 4 moves rightwards, and the friction force is obtained by reading through a spring dynamometer 8;

as shown in fig. 4, the bottom plate 3 is arranged on the driving belt 2 at equal intervals, different materials are arranged on the bottom plate 3, as shown in fig. 1 and 2, the driving belt 2 is connected with the adjusting rod 17 on the rotating plate 16, the adjusting rod 17 is in clamping connection with the moving member 14, the rotating plate 16 is in rotating connection with the fixed block 15, the tail end of the moving member 14 penetrates through the fixed block 15, the rotating rod 13 is in rotating connection with the moving member 14, under the action of the motor 12, the rotating rod 13 rotates, as shown in fig. 3, the moving member 14 moves along with the moving member, one end of the moving member 14 in a U-shaped structure moves towards the next adjusting rod 17 on the rotating plate 16, and the rotating plate 16 rotates along with the moving rod, so that the bottom plate 3 on the driving belt 2 moves until the U-shaped structure of the moving member 14 is in clamping connection with the adjusting rod 17, thereby the bottom plate 3 is replaced with different materials, the influence of the friction force effect of the bottom plate 3 with different roughness is conveniently demonstrated, the bottom plate 3 is conveniently replaced, the manual operation is reduced, the operation is conveniently accomplished, the operation of the interesting experimental device convenient for the friction force effect is conveniently demonstrated, as the detailed description of the prior art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. Interesting experimental device convenient to demonstration frictional force effect, including experimental plate (1), its characterized in that:

the experimental plate is characterized in that a driving belt (2) is arranged at the outer end of the experimental plate (1), a bottom plate (3) is arranged on the driving belt (2) at equal intervals, a friction block (4) is arranged above the bottom plate (3), a placing groove (5) is uniformly formed in the friction block (4), a spring (6) is arranged on the inner wall of the placing groove (5), a cushion block is connected with the tail end of the spring (6), a fixing rod (7) is arranged at the right end of the friction block (4), a hollow structure is arranged in the fixing rod (7), a spring dynamometer (8) is arranged at the right side of the friction block (4), a hook (9) is arranged at the left end of the spring dynamometer (8), a connecting rod (10) is connected to the right side of the spring dynamometer (8), and the right end of the connecting rod (10) is connected with an electric telescopic rod (11), and the electric telescopic rod (11) is arranged at the right side of the experimental plate (1);

the experimental plate is characterized in that a motor (12) is arranged on the left side of the experimental plate (1), the motor (12) is connected with a rotating rod (13), the rotating rod (13) is rotatably arranged on a moving part (14) through a bolt, the moving part (14) is connected with a fixed block (15) in a clamping mode, the fixed block (15) is arranged at the left end of the experimental plate (1), the fixed block (15) is rotatably connected with the center of a rotary table (16), adjusting rods (17) are arranged on the rotary table (16) at equal intervals, the adjusting rods (17) are connected with the moving part (14) in a clamping mode, and the tail ends of the adjusting rods (17) are connected with a driving belt (2).

2. The interesting experimental device for conveniently demonstrating friction force effect according to claim 1, wherein: one end of the moving part (14) which is clamped and connected with the adjusting rod (17) is of a U-shaped structure.

3. The interesting experimental device for conveniently demonstrating friction force effect according to claim 1, wherein: the rotating rod (13), the moving piece (14) and the adjusting rod (17) form a transmission structure.

4. The interesting experimental device for conveniently demonstrating friction force effect according to claim 1, wherein: the longitudinal section of the connecting rod (10) is of an L-shaped structure.

5. The interesting experimental device for conveniently demonstrating friction force effect according to claim 1, wherein: the friction block (4) and the experimental plate (1) form a sliding structure.